linux-kernel - Re: [RFC PATCH v8 4/7] of/irq: Adjust of pci irq parsing for multiple interrupts

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Message-ID: <59F2944F.9060208@rock-chips.com>
Date:   Fri, 27 Oct 2017 10:05:03 +0800
From:   jeffy <jeffy.chen@...k-chips.com>
To:     Rob Herring <robh+dt@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        Tony Lindgren <tony@...mide.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Brian Norris <briannorris@...omium.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Doug Anderson <dianders@...omium.org>,
        Frank Rowand <frowand.list@...il.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [RFC PATCH v8 4/7] of/irq: Adjust of pci irq parsing for multiple
 interrupts

Hi Rob,

On 10/27/2017 04:02 AM, Rob Herring wrote:
> Why do you need this patch? You're moving the wakeup handling from the
> PCI device to the bridge. The bridge device is not PCI interrupts, but
> a platform device so this function doesn't matter.
>

because it's possible we have multiple PCI devices with individual WAKE# 
interrupt.

so Brian suggested we may need to support both of PCI device wakeup 
handling and the bridge wakeup handling in the pci core(as the ACPI) :)

> Rob
>
>
>